Products

Contact Probes

We offer a comprehensive lineup of contact probes—from standard designs to fully customized models. Each probe is engineered for reliable performance, with careful attention to material selection, high-precision machining, and advanced surface treatments. We also provide vertical probes developed using Seiken’s proven contact probe technology. Looking for a custom solution? Get in touch—we’re here to help.

Advanced Probe Cards

Crucial for semiconductor testing, our probe cards are designed for both front-end wafer testing and back-end package testing, including BGA, CSP, and more. Seiken specializes in advanced probe cards also known as vertical probe cards, developed using our proprietary probe technology to deliver the right solution for your testing needs.

IC Test Sockets

Reliable IC sockets are key to accurate back-end testing. At Seiken, we offer complete socket solutions—from concept to final product—using precision machining to support diverse package types like CSP and QFN. Every socket is engineered for secure contact.

Test Fixtures

We design and build a wide range of test fixtures to support all kinds of electronic component testing—from connectors and capacitors to lighting test fixtures for FPDs such as LCDs and OLEDs, as well as press machine tools and other customized jigs. Each fixture is carefully tailored to meet your inspection requirements and production environment.

Precision Machining of Metals & Resins

We offer high-precision machining for a wide range of metals and resins, including beryllium copper, SK steel, brass, engineering plastics, and also ceramics. From fine-pitch hole drilling to complex outer contour shaping, our capabilities support everything from small-lot and prototype production to all kind of custom parts & terminals. Have a unique design or material in mind? Let’s make it happen.

PCB Design & Assembly Services

Through our group company, we provide full-service support for PCB development and electronic assembly. Our services cover advanced circuit design—including power supply, RF, and high-speed signal circuits—as well as Surface Mount Technology (SMT), through-hole (DIP) insertion, and skilled hand soldering and board rework. Whether you need a single-board prototype or a small-lot production run, our solutions are trusted in high-reliability applications such as medical devices, industrial equipment, and precision instrumentation. From schematic design to final assembly—leave your PCB and system integration needs to us.